| one publication added to basket [218866] | A new burrowing barnacle species and external ultrastructure in adults of the family Cryptophialidae (Thecostraca, Cirripedia, Acrothoracica)
Kolbasov, G.A. (2004). A new burrowing barnacle species and external ultrastructure in adults of the family Cryptophialidae (Thecostraca, Cirripedia, Acrothoracica). ZooL. Zh. = Russ. J. Zool. 83(1): 16-32
In: Zoologicheskij Zhurnal = Russian Journal of Zoology. Akademiâ nauk SSSR: Moskva. ISSN 0044-5134; e-ISSN 1560-0912, more
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Islands
Morphology
Taxa > Species > New taxa > New species
Acrothoracica [WoRMS]; Cirripedia [WoRMS]; Crustacea [WoRMS]; Cryptophialidae Gerstaecker, 1866 [WoRMS]; Cryptophialus gantsevichi Kolbasov, 2003 [WoRMS]; Cryptophialus lanceolatus Tomlinson, 1969 [WoRMS]; Cryptophialus longicollatus Berndt, 1907 [WoRMS]; Cryptophialus variabilis Stubbings, 1961 [WoRMS]; Thecostraca [WoRMS]
Marine/Coastal |
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| Abstract |
The new species Cryptophialus gantsevichi is characterized by a long opercular neck and opercular bar with 4 projections. This species is similar to C. variabilis, C. cornophorus, C. longicoolatus, and C. lanceolatus by the shape of the opercular neck and structure of opercular bars. C. longicollatus and C. variabilis have a smaller number of the opecular bar projections (2 and 3, respectively). Other two species bear 4 projections on each opercular bar, the posterior projection being long and comparable with the others. The representatives of Cryptophialidae are characterized by elongated opercular area of the mantle sac; crown-like opercular bars; stick-like lateral bars; the absence of the orificial knob, tongue-like labrum without multifid scales; rudimentary mouth cirri; whip-like dorsal processes of the thorax; peculiar gastric mill (gizzard); and the absence of denticle-like projections on the cuticle of dwarf males often with mantle teeth. These features distinguish Cryptophialidae from other Actothoracica (Lithoglyptidae, Trypetesidae). In addition, cryptophialid cyprics larvae with rudimentary thorax and thoracopods have a unique morphology. A problem of the unity of the order Pygophora is set up. |
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